Lightweight durable material with ventilated mesh paneling Adjustable release-buckle straps for a custom, secure fit Slip, zip and toggle pockets to securely hold essentials Safety whistle and key clips Reflective details for low-light visibility Includes 2 x 750mL flasks and a straw extender (Bladder sold separately) Body: 86% polyester, 14% spandex and Lining: 74% polyester, 21% nylon, 5% spandex Hand wash The Nike Kiger 4.0 Running Vest is imported. Whether you're running or hiking, the Nike Kiger 4.0 Running Vest is equipped with everything you need to keep you adequately prepared on the go. Built from lightweight mesh-paneled material, the strategically-placed release-buckle straps locks in the custom, stabilized fit. Accented with various pockets for ample storage, it's finished with a safety whistle, key clip, reflective details, a straw extender and two flasks to keep you ready for whatever, whenever. Unisex Nike Kiger Vest 4.0